Bearing.



- Patented Dec. 19, 1911.

A.'T. PRESCOTT.

BEARING.

APPLICATION FILED APR. 13, 1910.

ITNESSES:

I shaft inbot-h l'o all whom it may concern:

I, ARTHUR T. Pnnsoo'rr, a. citizen of the United States of America,

vented certain new and ments 1n Bearings,

* UNITED. STATES PATENT orator.

ART-HUB T. PRESCOTT, OF EAST ORANGE, NEW JERSEY, ASSIGNOR TO i A CORPORATION NEW YQRK.

mornmenam 00.,

'Be it known that and a resident of East Orange, county of Essex, and State of New Jerse have inusefu Improve of which the 1s a specification, reference lieinghad to at? accompanying drawings, forming part thereof.

My invention relates ,to improvements in bearings,

and particularly to radial and ai'ings for vertical thrust .be shafts, and the this form of bearing and to provide for the thorough lubrication of the bearing surfaces therein.- v

In practice great diflicultyhas been experienced inthoroughly lubricating a verti-f cal shaft bearing and particularly one employing opposed end thrust bearing surfaces for resisting longitudinal movements of the directions, because of the difliculty of retaining the lubricatingmaterial between the bearing surfaces, and especially between those surfaces which resist upward movement of the shaft.

carrying out my invention I employ a housing of annular form which surrounds the shaft and which constitutes an oil reservoir, and I provide the shaft with a 'ortion secured thereto having a downward y pro 1 jecting sleeve Which reservoir, and which is provided with-upper andl extent,

extends into the oil the said bearing, all of which are arranged at a point within the said oil reservoir, and by this means I am enabled to thoroughly lubricate the bearing surfaces even tothe if desired, of continuously flooding them, while at .the same time retaining the oil against escape along the shaft.-

' out the novelfeatures in with m of a bearmg of In order that my inventionmay be thornow proceed to ng reference'to' the accom(panying drawings Illustrating the same, an

clalms.

the drawings: Figure 1 is a view in central vertical section through a vertical shaft bearing constructed 111- accordance invention. Fig. 2 is a. similar view the same type but of slightly modified form.

.of Fig. 1, t-hefshaft 10 therein 1s with .a collar 11 a dependent annular sleeve centric with the shaft followin ber 14 between the collar are to improve will then point 1s provided with a second theinner "in-this case will of course eaoa'en n.

Bahama.

Patented De... is, 1911.

Referring first of all to the constructionf I provided a key 12,-the said collar being provided wit 13 disposed con- 10, but spaced thereh'at. an annular chantber' 14 is formed between the said sleeve and the shaft housing 15 'surroundsj'the said shaft, the said housing being provided with an up; r1s1ng sleeve'portion 16, the upper end of; which is received within the annular cham-. 13 and the shaft 10, a suitable base 17 and an exterior an-v nular wall 18; Theannular' space inclosed between the sleeve 16 and the wall 18 'con-.

secured fast thereto as bit; 7

stitutes' an oil chamberlwhich may receive Y and will retain oil up to the level of the upper edge of the said sleeve 16. The lower end of the collar'13 is provided with an annular flange 22, the lower surface 'of which finds a bearing upon a complementary bearing surface 20 upon the the periphery of which bears against the innersurface of an uprising flange or ring 21 with which the said base isprovided. A ring or cover plate-23 surmounts' thesaid flange 21, being suitably bolted thereto as shown, the inner port-ion of the said ring or cover plate overhanging the said flan e faces between 'theelement 23 and the flange hearing which will oppose upward movement of the shaft 10,

While the co-acting bearing surfaces between the housing base and the flange a consti tute a thrust bearing for resisting downward movenient of the shaft. Radial movement of the shaft is, of course, opposed by houslng base 17 and the radial bearing between the periphery of the flange 22'and the inner surface of the uprising flange or ring 21 as .will bewell understood. All these bearing. surfaces are disposed Within the oil chamber aforesaid so that they may be maintained in a continuously flooded condition, the said sleeve 16 acting to prevent the oil contained in the reservoir from escaping along the shaft.

The construction of ig'. 2 is similar to that of Fig. 1 except that the collar sleeve. flange 24, and late 23, which he of sectional form to permit of'the assemblage of the edge of the cover parts, engages a portion of the sleeve above the sleeve flange 22. This constitutes a double thrust bearing which has two sets of bearing surfaces for op osing thrust in either direction, and it will be of course understood that such bearing surfaces may be duplicated as may be desired to any reasonable extent. This form of bearing is suitable for the stems of heavy gate and sluice valves, and other apparatus in which'the thrust is sometimes 1n one direction and sometimes in the other.-

What I claim is:

1. A vertical shaft, a collar affixed thereto having adownwar'dly projecting sleeve ortion which is spaced from the shaft, the ower end of said sleeve portion being con structed to form a radial bearing surface and two horizontal thrust bearing surfaces in different planes; a housing surrouhding the shaft and collar provided with an upwardly projecting sleeve which is received between the collar sleeve and the shaft and which constitutes the inner wall of an oil chamber contained within the housing, the said housing forming a horizontal bearing surface for the lower thrust bearing surface of the collar and an annular bearing surface for said radial bearing surface, and a separate member afiixed to the housing having a bearing surface for the upper thrust bearing surand the outer periphery of which forms a radial bearing surface, a housing surroundng the shaft and collar provided with an ,upwardly projecting sleeve which is received between the collar sleeve and the shaft and which constitutes the inner wall of an oil chamber contained within the housing, the

bottom of said housing forming a flat horizontalbearing surface of the collar flange, and an annular bearing surface for said radial bearing surface, hnda separate member aflixed to the housing having a bearing surface for the upper thrust bearingsurface of the collar flange below the upper end of said upwardly projecting sleeve whereby all of said bearing surfaces/may be submerged in oil.

ARTHUR T. PRESCOTT. Witnesses:

, D. EmoDEUTsoH,

lIoRATIo' OKnnrn.

forms another flat thrust bearing surface, I 

